Actividades científicas de la campaña de invierno

AGUAYO-LOBO A

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Boletín Antártico Chileno (Chile)
A AGUAYO-LOBO

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article publicada [Aves , Mamíferos marinos]

AGUAYO-LOBO A (1996) Actividades científicas de la campaña de invierno. Boletín Antártico Chileno (Chile) 15: 12-14.


Abstract

Between June 2 and 22, 1996, we participated in the first winter antarctic cruise on board of the AP-46 “Contralmirante Oscar Viel Toro”, of the Chilean Navy, in the Bransfield Strait. The average thickness of the sea ice was 48.9 cm, with a maximum of 220 cm, in the explored area. The zooplankton samples indicate that in the open waters the more abundant copepods genera were Oithona and Metridia. The few species of euphausiids were collected at night. The only species of penguin registered in the Bransfield Strait was Adelie; however, in these waters number of gulls (Larus) and petrels (giant, antarctic, snow, fulmar and cape pigeon) were sighted. The principal species were: Crabeater, leopard and Weddell seals, together with the antarctic fur seal, and mink whales. These findings allow us to infer that in winter the marine productivity in those waters is higher than that known.


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